212856635628059 has 2 divisors, whose sum is σ = 212856635628060. Its totient is φ = 212856635628058.

The previous prime is 212856635627939. The next prime is 212856635628097. The reversal of 212856635628059 is 950826536658212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212856635628059 - 2²⁰ = 212856634579483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212856635628059.

It is not a weakly prime, because it can be changed into another prime (212856035628059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106428317814029 + 106428317814030.

It is an arithmetic number, because the mean of its divisors is an integer number (106428317814030).

Almost surely, 2^{212856635628059} is an apocalyptic number.

212856635628059 is a deficient number, since it is larger than the sum of its proper divisors (1).

212856635628059 is an equidigital number, since it uses as much as digits as its factorization.

212856635628059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 373248000, while the sum is 68.

The spelling of 212856635628059 in words is "two hundred twelve trillion, eight hundred fifty-six billion, six hundred thirty-five million, six hundred twenty-eight thousand, fifty-nine".